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5 papers · 2 filters
Superlattice structures in twisted bilayers of folded graphene
Hennrik Schmidt, Johannes C. Rode, Dmitri Smirnov +1
The electronic properties of bilayer graphene strongly depend on relative orientation of the two atomic lattices. Whereas Bernal-stacked graphene is most commonly studied, a rotati…
Suppression of decoherence in a graphene monolayer ring
Dmitri Smirnov, Johannes C. Rode, Rolf J. Haug
The influence of high magnetic fields on coherent transport is investigated. A monolayer graphene quantum ring is fabricated and the Aharonov-Bohm effect is observed. For increased…
Partitioning of on-demand electron pairs
Niels Ubbelohde, Frank Hohls, Vyacheslavs Kashcheyevs +6
We demonstrate the high fidelity splitting of electron pairs emitted on demand from a dynamic quantum dot by an electronic beam splitter. The fidelity of pair splitting is inferred…
Tensile strained membranes for cavity optomechanics
G. D. Cole, P. -L. Yu, C. Gärtner +8
We investigate the optomechanical properties of tensile-strained ternary InGaP nanomembranes grown on GaAs. This material system combines the benefits of highly strained membranes…
Magnetoresistance Induced by Rare Strong Scatterers in a High Mobility 2DEG
L. Bockhorn, I. V. Gornyi, D. Schuh +3
We observe a strong negative magnetoresistance at non-quantizing magnetic fields in a high-mobility two-dimensional electron gas (2DEG). This strong negative magnetoresistance cons…